2(x-3):12=7:3解方程
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1.9×0.8-3.6x=0.83.6x=1.52-0.8=0.72x=0.72÷3.6=0.2
咨询记录 · 回答于2023-04-14
2(x-3):12=7:3解方程
具体计算过程如下:
2(x-3):12=7:32(x-3)=7/3×122x-6=282x=28+6=34x=34÷2x=17
1/4x÷25%=1
1/4x÷25%=11/4x=0.25x=0.25×4x=1
1.9×0.8-3.6x=0.8
1.9×0.8-3.6x=0.83.6x=1.52-0.8=0.72x=0.72÷3.6=0.2
3米:25cm
25.5:93
56:0.8
3米:25厘米=300:25=12:1
25.5:93=255:930=17:62
56:.08=560:8=70:1
5/8:0.375
5/8: 0.375=5/8:3/8=5:3